Nissan Altima L32. Manual - part 1237

SEC-98

< COMPONENT DIAGNOSIS >

[COUPE]

B260C STEERING LOCK UNIT

B260C STEERING LOCK UNIT

Description

INFOID:0000000004206074

The electronic steering column lock performs the check by itself according to the steering status.

DTC Logic

INFOID:0000000004206075

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Turn ignition switch OFF.

3. Press door switch.

4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-98, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206076

1.

INSPECTION START

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See 

SEC-98, "DTC Logic"

.

Is the DTC B260C displayed again?

YES

>> Replace electronic steering column lock.

NO

>> Inspection End.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B260C

STEERING LOCK 
UNIT

BCM detects malfunctioning of electronic steering 
column lock before steering locking.

• Electronic steering column lock

B260D STEERING LOCK UNIT

SEC-99

< COMPONENT DIAGNOSIS >

[COUPE]

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B260D STEERING LOCK UNIT

Description

INFOID:0000000004206077

The electronic steering column lock performs the check by itself according to the steering lock status (before

lock, after lock and unlock).

DTC Logic

INFOID:0000000004206078

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Turn ignition switch OFF.

3. Press door switch.

4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-99, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206079

1.

INSPECTION START

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See 

SEC-99, "DTC Logic"

.

Is the DTC B260D displayed again?

YES

>> Replace electronic steering column lock.

NO

>> Inspection End.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B260D

STEERING LOCK 
UNIT

BCM detects malfunctioning of electronic steering 
column lock after steering locking.

• Electronic steering column lock

SEC-100

< COMPONENT DIAGNOSIS >

[COUPE]

B260F ENGINE STATUS

B260F ENGINE STATUS

Description

INFOID:0000000004206080

BCM receives the engine status signal from ECM via CAN communication.

DTC Logic

INFOID:0000000004206081

DTC DETECTION LOGIC

NOTE:

• If DTC B260F is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "DTC Logic"

.

• If DTC B260F is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-37, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON under the following conditions.

-

CVT selector lever is in the P position.

-

Do not depress the brake pedal.

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-100, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206082

1.

INSPECTION START

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See 

SEC-100, "DTC Logic"

.

Is the DTC B260F displayed again?

YES

>> GO TO 2

NO

>> Inspection End.

2.

REPLACE ECM

1. Replace ECM.

2. Refer to 

EC-1048, "BASIC INSPECTION : Special Repair Requirement"

 (VQ35DE), 

EC-24, "BASIC

INSPECTION : Special Repair Requirement"

 (QR25DE  California) or 

EC-560, "BASIC INSPECTION :

Special Repair Requirement"

 (QR25DE except for California).

>> Inspection End.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B260F

INTERRUPTION OF 
ENGINE STATUS 
SIGNAL

BCM is not yet received the engine status signal 
from ECM when ignition switch is in ON position

• ECM

B2612 STEERING STATUS

SEC-101

< COMPONENT DIAGNOSIS >

[COUPE]

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B2612 STEERING STATUS

Description

INFOID:0000000004206086

There are 2 switches in the steering unit. IPDM E/R compares those 2 switches conditions to judge the

present steering status and transmit the result to BCM via CAN communication.

DTC Logic

INFOID:0000000004206087

DTC DETECTION LOGIC

NOTE:

• If DTC B2612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "DTC Logic"

.

• If DTC B2612 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-37, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE 1

1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.

-

CVT selector lever is in the P or N position.

-

Do not depress brake pedal.

-

Steering is locked.

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-101, "Diagnosis Procedure"

.

NO

>> GO TO 2

2.

PERFORM DTC CONFIRMATION PROCEDURE 2

1. Turn ignition switch ON.

2. Turn ignition switch OFF.

3. Press door switch.

4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-101, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206088

1.

INSPECTION START

Check the case in which DTC is detected.

• Case1: It is detected after ignition switch is changed from ON to OFF and door switch is pressed.

• Case2: It is detected after ignition switch is changed from ON to OFF
In which case is DTC detected?

Case1 >> GO TO 2

Case2 >> GO TO 7

2.

CHECK BCM OUTPUT SIGNAL

DTC

Self-diagnosis 

name

DTC detecting condition

Possible causes

B2612

STEERING STA-
TUS

BCM detects the mismatch between the 
following status for 1 second
• Steering lock or unlock
• Feedback of steering lock status from 

IPDM E/R (CAN)

• Harness or connectors

[steering lock unit circuit (BCM side) is 
open or shorted]

• Harness or connectors

[steering lock unit circuit (IPDM E/R side) 
is open or shorted.]

• Steering lock unit 
• IPDM E/R